A cell analysis apparatus includes a test sample preparation part for preparing a test sample by treating an analyte with a dye for staining an intracellular substance of cells in the analyte, a detector for detecting scattered light and fluorescence from each cell in the test sample, and a controller for identifying living mononuclear cells based on the scattered light and the fluorescence detected by the detector. A cell analysis method includes preparing a test sample by treating the analyte with a dye for staining an intracellular substance of cells in the analyte; detecting scattered light and fluorescence from each cell in the test sample; and identifying living mononuclear cells based on the scattered light and the fluorescence detected.
